EP1150007B1 - Method and apparatus for coupling an engine and transmission with a starter/alernator - Google Patents

Method and apparatus for coupling an engine and transmission with a starter/alernator Download PDF

Info

Publication number
EP1150007B1
EP1150007B1 EP20010303663 EP01303663A EP1150007B1 EP 1150007 B1 EP1150007 B1 EP 1150007B1 EP 20010303663 EP20010303663 EP 20010303663 EP 01303663 A EP01303663 A EP 01303663A EP 1150007 B1 EP1150007 B1 EP 1150007B1
Authority
EP
European Patent Office
Prior art keywords
system
coupled
starter
rotor
alternator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP20010303663
Other languages
German (de)
French (fr)
Other versions
EP1150007A3 (en
EP1150007A2 (en
Inventor
Jon Barry Joachim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Motor Co
Original Assignee
Ford Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US558601 priority Critical
Priority to US09/558,601 priority patent/US6364042B1/en
Application filed by Ford Motor Co filed Critical Ford Motor Co
Publication of EP1150007A2 publication Critical patent/EP1150007A2/en
Publication of EP1150007A3 publication Critical patent/EP1150007A3/en
Application granted granted Critical
Publication of EP1150007B1 publication Critical patent/EP1150007B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48Parallel type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54Transmission for changing ratio
    • B60K6/547Transmission for changing ratio the transmission being a stepped gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/04Starting of engines by means of electric motors the motors being associated with current generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00Fluid-actuated clutches
    • F16D25/08Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/083Actuators therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00Fluid-actuated clutches
    • F16D25/08Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/087Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation the clutch being actuated by the fluid-actuated member via a diaphragm spring or an equivalent array of levers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/02Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • Y02T10/6213Hybrid vehicles using ICE and electric energy storage, i.e. battery, capacitor
    • Y02T10/6221Hybrid vehicles using ICE and electric energy storage, i.e. battery, capacitor of the parallel type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00Hybrid electric vehicles, HEVS
    • Y10S903/902Prime movers comprising electrical and internal combustion motors
    • Y10S903/903Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904Component specially adapted for hev
    • Y10S903/912Drive line clutch
    • Y10S903/914Actuated, e.g. engaged or disengaged by electrical, hydraulic or mechanical means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00Hybrid electric vehicles, HEVS
    • Y10S903/902Prime movers comprising electrical and internal combustion motors
    • Y10S903/903Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904Component specially adapted for hev
    • Y10S903/915Specific drive or transmission adapted for hev
    • Y10S903/917Specific drive or transmission adapted for hev with transmission for changing gear ratio
    • Y10S903/919Stepped shift
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00Hybrid electric vehicles, HEVS
    • Y10S903/902Prime movers comprising electrical and internal combustion motors
    • Y10S903/903Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/951Assembly or relative location of components

Description

  • The present invention relates generally to internal combustion engines for automotive vehicles, and more specifically, to an automotive vehicle having a starter/alternator coupled between the engine and transmission and to a method for engaging and disengaging the engine from the transmission.
  • Automotive vehicles with internal combustion engines are typically equipped with both a starter motor and alternator positioned in different locations on the engine. In recent years, a combined alternator and starter motor has been proposed. To date the cost and complexity of combining these systems into one device has prevented it from being used in a production embodiment.
  • With new interest in hybrid electric vehicles, the starter-alternator can assume other functions such as stopping and restarting the engine to save fuel during idle and deceleration, aiding the engine during heavy accelerations and capturing energy during decelerations.
  • Known systems typically have a rotor mounted directly to the crankshaft of the engine and a stator sandwiched between the engine block and the bell housing of the transmission. During start-up of the vehicle, the starter/alternator functions as a starter rotating the crankshaft of the engine while the cylinders are fired. After the engine is started, the starter/alternator is used as a generator to maintain the electrical system of the vehicle. WO 00/06896 discloses one of such systems.
  • One drawback to such systems is that the rotor remains fixedly attached to the crankshaft. When the engine is not operating, it may be desirable to provide the transmission with power supplied by the starter-alternator. However, to do this the crankshaft of the unoperating engine is rotated. This is inefficient because an increased amount of power must be provided.
  • It would therefore be desirable to disengage the engine from the starter/alternator rotor to reduce the inefficiency of turning the crankshaft of the engine when operation of the engine is not required.
  • It is therefore one object of the invention to increase the efficiency of the starter/alternator during operation of the vehicle under the control of the starter/alternator.
  • In one aspect of the invention, a starter/alternator system for an automotive vehicle with an internal combustion engine has a crankshaft coupled to pistons and a flywheel coupled to the crankshaft. The vehicle also has a transmission having an input shaft. A starter/alternator has a rotor and a stator. The rotor is fixedly coupled to the input shaft. A clutch selectively couples the input shaft and the crankshaft.
  • The rotor has a rotor carrier and a rotor coil. One feature of the invention is that the rotor carrier has a radially extending portion and an annular portion spaced from the input shaft. The annular portion has an inner surface and outer surface wherein the rotor coil is fixedly coupled to the outer surface.
  • In another aspect of the invention, the starter/alternator may be used to inertia balance the engine. That is, the starter/alternator may be modulated to provide a torque to reduce the effective inertia of the starter/alternator system so that the engine does not have an increased inertial load due to the starter/alternator system.
  • One advantage of the invention is that axial movement of the rotor with respect to the stator due to magnetic forces is reduced.
  • Other objects and features of the present invention will become apparent when viewed in light of the detailed description of the preferred embodiment when taken in conjunction with the attached drawings and appended claims.
    • Figure 1 is a schematic view of an automotive vehicle having a starter/alternator system according to the present invention.
    • Figure 2 is a cross-sectional view of the starter/alternator engaging the transmission and engine.
    • Figure 3 is a cross-sectional view of the starter/alternator disengaging the transmission and engine.
  • The present invention is described with respect to a particular configuration of a starter/alternator. However, the teachings of the present invention may be applied to various starters for internal combustion engines.
  • Referring now to Figure 1, an automotive vehicle 10 is illustrated having an internal combustion engine 12 having cylinders 14 with pistons 16 located therein. Each cylinder 14 is coupled to a fuel pump through a fuel injector (not shown) or other fuel delivery system. Each cylinder 14 also has a spark plug 19 or other ignition source coupled to a powertrain control unit 18. Powertrain control unit 18 controls the ignition timing and fuel pump operation in a conventional manner subject to the improvements of the present invention.
  • Engine 12 is coupled to a transmission 20.
    Transmission 20 may be automatic, manual or continuously variable. Transmission 20 has a transaxle input shaft 22. Transmission 20 is coupled to a differential 28 to drive an axle 30 to provide power to wheels 32. Of course, the present invention is also applicable to four wheel drive systems in which all of the wheels 32 are driven. A starter/alternator system 40 that includes a starter/alternator 42 and its associated control electronics is coupled to engine 12. In the present invention, starter/alternator 42 is positioned between a housing 44 of transmission 26 and the engine 12. Starter/alternator 42 has a stator 46 fixedly attached to bell housing 44 and a rotor 48 selectively coupled to a crankshaft 50 of engine 12 and fixedly coupled to transmission 20. A clutch 52 is used to engage and disengage engine 12 from transmission 26. As will be further described below, starter/alternator 42 is used as a starter during engine start-up and as an alternator to supply power to recharge the batteries of the vehicle and to supply electrical loads. Clutch 52 allows starter/alternator 42 to decouple the engine 12 and transmission 26 during stops or idle of engine 12.
  • Starter/alternator system 40 has a system controller 54 that is coupled to powertrain control unit 18 and to a power inverter 56. In practice, the power inverter 56 and system controller 54 may be contained in a single package. As will be further described below, system controller 54 may be used to control the coupling and decoupling of the crankshaft and the transmission by controlling the operation of the clutch actuator in the starter/alternator 42. The inverter 56 is used to convert DC power to AC power in the start-up mode and AC power to DC power in power generation mode as will be further described below.
  • Power inverter 56 may be coupled to an energy storage device 58 such as an ultra capacitor, a first DC to DC converter 60, and a second DC to DC converter 62. In the configuration shown, DC to DC converter 60 is coupled to a 36 volt battery 64. DC to DC converter 62 is coupled to a 12 volt battery 66. Of course, the actual battery voltage, the number of storage devices and the number of DC to DC converters is dependent on the particular system to which it is attached.
  • Referring now to Figure 2, starter/alternator 42 is illustrated in further detail with clutch 52 shown in engagement. Rotor 48 has a rotor carrier 70 and a rotor winding 71. Rotor carrier 70 is fixedly coupled to input shaft 22. Therefore, input shaft 22 and rotor carrier 70 simultaneously rotate. Rotor carrier 70 has a radially extending portion 72 and an axially extending portion 74. Radially extending portion 72 extends a predetermined distance from a longitudinal axis 76 of the system. Longitudinal axis 76 is preferably co-extensive with crankshaft 50, rotor carrier 70 and input shaft 22. A bushing 78 may be used to couple input shaft 22 and rotor carrier 70. Rotor carrier 70 generally has a cup shape having an interior portion 80 and an exterior portion 82 defined by axially extending portion 74. Rotor winding 71 is positioned on exterior portion 82. Rotor carrier 70 has an axial nose portion 84. Nose portion 84 lies on the longitudinal axis 76 of rotor carrier 70 and is thus coaxial with crankshaft 50 and input shaft 22. A support bracket 86 is used in conjunction with fasteners 88 to connect rotor carrier 70 to input shaft 22. A position sensor target 89 may be coupled to rotor carrier 70 to provide feedback to system controller 54.
  • Crankshaft 50 has a flywheel 90 secured thereto through fasteners 92. Flywheel 90 has a cup shaped portion 94 that is used to receive a bearing 96. Bearing 96 has an outer race 98, and inner race 100, and bearing balls 102. Outer race 98 is fixedly coupled to shaft 50 while inner race 100 is fixedly coupled to nose portion 84. Bearing balls 102 allow rotor carrier 70 and crankshaft 50 to rotate independently.
  • Clutch 52 is used to engage and disengage crankshaft 50 from input shaft 22. Clutch 52 has an actuator assembly 104 and a friction plate portion 106.
  • Actuator assembly 104 has a slave cylinder 108 that is stationary with transmission. Slave cylinder 108 has an internal piston that, through a thrust bearing 109, provides force to and moves axially actuator assembly rods 110 which extend through radially extending portion 72. Actuator portion 104 engages a diaphragm spring 112 pivotally coupled at a plurality of pivot points 114. Diaphragm 112 has an inner portion 116 closest to longitudinal axis 76 and an outer portion 118 furthest away from longitudinal axis 76. Actuator portion 104 moves in an axial direction pivoting inner portion 116 and outer portion 118 about pivot point 114. As piston 110 moves in an axial direction toward crankshaft 50, input portion 116 rotates about pivot point 114 so that outer portion 118 pivots toward input shaft 22.
  • Friction portion 106 is comprised of a pair of friction plates 120 and 124, and a pair of separation plates 122, 126. Two friction plates and two separator plates are illustrated. The friction plates are preferably formed of commonly used clutch materials. However, various numbers of friction plates may be used as would be evident to those skilled in the art. Friction plate 120 is fixedly coupled to flywheel 90 and has a single friction surface opposite flywheel. Friction plate 124 is slidably coupled to flywheel 90 with a support 128. Support 128 engages the outer portion of cup shaped portion 94. Support 128 moves in an axial direction within a spline 130.
  • Separator plates 122 and 126 are coupled to interior portion 80 of axially extending portion 74 of rotor carrier 70. Separator plates 122 and 126 are slidably engaged in a spline 131. Thus, as rotor carrier 70 rotates with input shaft 22, separator plates 122 and 126 rotate. As flywheel 90 rotates, friction plates 120 and 124 rotate. Separator plate 126 has a ridge 132 thereon. Ridge 132 is used to engage outer portion 118 of diaphragm spring 112.
  • As is illustrated in Figure 2, actuator assembly rods 110 apply no pressure to friction plates 120, 122, 124, and 126 so that rotor carrier 70 is engaged with flywheel 90. Both input shaft 22 and crankshaft 50 rotate together. Thus, the bearing 86 does not rotate relatively.
  • Referring now to Figure 3, clutch 52 is shown in disengagement. Actuator assembly rods 110 are extended in an axial direction toward crankshaft 50 that allows diaphragm spring 112 to rotate in a clockwise manner (top portion). Thus, outer portion 118 of diaphragm spring 112 moves toward input shaft 22 allowing friction and separator plates 122, 124, and 126 to separate. Thus, rotor carrier 70 is disengaged from crankshaft 50. Rotor carrier 70 rotates with input shaft 22. Rotor carrier 70 rotates relative to crankshaft 50 at bearing 96. During motor rotation, bearing 96 holds rotor carrier 70 in an axial position within cup shaped portion 94. To re-engage rotor carrier 70 and crankshaft 50, spaces 134 are eliminated by actuator assembly rods 110 moving in a direction toward input shaft 22 to allow outer portion 118 to rotate in a counterclockwise direction so that friction and separator plates 122, 124, and 126 slide toward crankshaft 50 and engage each other and friction plate 120.
  • In operation of the starter/alternator system 40, the starting process of engine 12 is initiated by a key placed in the start position or the depression of the accelerator pedal (not shown) with key placed in run position. Clutch 52 engages the crankshaft 50 with input shaft 22. Thirty-six volt battery 64 provides electrical power for starter/alternator 42 that may be up converted to a higher voltage by DC to DC converter 60. This higher voltage is used to charge energy storage 58. Inverter 56 converts the DC power to three-phase AC power. The AC power is supplied to the stator 46 of starter/alternator 42. The starter/alternator 42 rotates rotor 48 which in turn rotates crankshaft 50 of engine 12.
  • When the rotor 48 reaches a predetermined speed, the engine 12 is started by supplying fuel through fuel pump and controlling the spark timing through spark plugs 19 through powertrain control unit 18.
  • In the generating mode (after the engine has started), the energy storage system 58, and batteries 64, 66 are monitored to determine whether they are fully charged. If any of the energy storage sources drop below a predetermined range, three-phase AC power from starter/alternator 42 is converted to DC by power inverter 56. DC to DC converters 60, 62 are used to convert the possibly higher voltage DC to 42 volts and 14 volts DC respectively. It should be noted that the ultra capacitors of energy storage 58 are charged directly by power inverter 56.
  • At some point during the operation of the vehicle, it may be desirable to run solely on electric power. In such a case, clutch 52 is used to disengage crankshaft 50 from input shaft 22 of transmission 20. This allows the starter/alternator 42 to operate as an motor to power the vehicle without having to rotate the crankshaft and pistons. This mode of operation is useful at low speeds such as in city driving. When desired, system controller 54 can control the system to operate with the engine, and the starter/alternator 42 can operate as an alternator to charge the batteries.
  • The starter/alternator has a higher inertial load than that normally seen by an engine. The starter/alternator may be used as a torque source to reduce inertial load. While the engine is operating, the starter/alternator may be powered to counteract its inertial load. Thus, the inertial load that the engine sees may be controlled to that which the engine would see without a starter/alternator system. That is, the starter/alternator may provide a non-driving torque to reduce inertial load.

Claims (12)

  1. A system for an automotive vehicle comprising:
    an internal combustion engine (12) having a crankshaft (50) fixedly coupled (92) to a flywheel (90);
    a transmission having an input shaft (22);
    a starter/alternator (42) having a rotor (48) and a stator (46), said rotor (48) having a carrier (70) fixedly coupled to the transmission input (22) and a rotor coil (71), said carrier (70) having a radially extending portion (72), and an annular portion (74) spaced from said input shaft (22), said annular portion having an inner surface (80) and outer surface (82), said rotor coil (71) is fixedly coupled to said outer surface (82); and
    a clutch mechanism (52) selectively coupling said input shaft (22) to said crankshaft (50), said clutch (52) having a first friction plate (120) carried on said flywheel (90), a first separator plate (122) slidably coupled to said inner surface (80) of said rotor (48), and actuator (104) for selectively moving said first friction plate (120) into engagement with said first separator plate (122).
  2. A system as claimed in claim 1 wherein said actuator (104) comprising a diaphragm spring (112) pivotally coupled (114) to said carrier (70) and a slave cylinder operatively coupled to said diaphragm spring.
  3. A system as claimed in any preceding claim wherein said diaphragm spring (112) is pivotally coupled to said radially extending portion (72).
  4. A system as claimed in any preceding claim further comprising a controller (54) coupled to the starter/alternator (42) to control the engagement and disengagement of the crankshaft (50) and the input shaft (22).
  5. A system as claimed in any preceding claim further comprising a bearing for rotatably coupling said rotor carrier and said crankshaft.
  6. A system as claimed in any preceding claim wherein said flywheel (90) has a cup shaped portion receiving said bearing.
  7. A system as claimed in any preceding claim wherein said carrier (70) having an axially extending nose portion (84) rotatable coupled to said bearing.
  8. A system as claimed in any preceding claim further comprising second separator plate (126) and a second friction plate (124).
  9. A system as claimed in claim 8 wherein said second separator plate is rotatably coupled to said rotor carrier.
  10. A system as claimed in claim 8 wherein said second separator plate is slidably and rotatably coupled to said flywheel.
  11. A system as claimed in claim 8 wherein said actuator comprises a slave cylinder and piston.
  12. A system as claimed in claim 8 wherein said piston moves a diaphragm spring portion into engagement with said second separator plate.
EP20010303663 2000-04-26 2001-04-20 Method and apparatus for coupling an engine and transmission with a starter/alernator Expired - Fee Related EP1150007B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US558601 2000-04-26
US09/558,601 US6364042B1 (en) 2000-04-26 2000-04-26 Method and apparatus for coupling an engine and transmission with a starter/alternator

Publications (3)

Publication Number Publication Date
EP1150007A2 EP1150007A2 (en) 2001-10-31
EP1150007A3 EP1150007A3 (en) 2004-12-15
EP1150007B1 true EP1150007B1 (en) 2006-03-22

Family

ID=24230188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010303663 Expired - Fee Related EP1150007B1 (en) 2000-04-26 2001-04-20 Method and apparatus for coupling an engine and transmission with a starter/alernator

Country Status (3)

Country Link
US (1) US6364042B1 (en)
EP (1) EP1150007B1 (en)
DE (1) DE60118112T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2448092A2 (en) 2010-10-29 2012-05-02 ZF Friedrichshafen AG Drive unit with an electric machine and a clutch

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845019B4 (en) * 1998-09-30 2005-04-07 Continental Isad Electronic Systems Gmbh & Co. Ohg Suspension for a torque-generating, receiving and / or transmitting assembly in the drive train of a motor vehicle
US6655484B2 (en) * 2000-12-02 2003-12-02 Ford Motor Company Hybrid powertrain having rotary electric machine, including engine-disconnect clutch, between internal combustion engine and transmission
JP3753091B2 (en) * 2002-04-03 2006-03-08 トヨタ自動車株式会社 Engine start control device, engine start control method, and recording medium containing program for implementing the method
US20030197991A1 (en) * 2002-04-08 2003-10-23 Visteon Global Technologies, Inc. System for providing power to an electrical system in a vehicle
US6838778B1 (en) * 2002-05-24 2005-01-04 Hamilton Sundstrand Corporation Integrated starter generator drive having selective torque converter and constant speed transmission for aircraft having a constant frequency electrical system
US6838779B1 (en) 2002-06-24 2005-01-04 Hamilton Sundstrand Corporation Aircraft starter generator for variable frequency (vf) electrical system
DE10246227B4 (en) * 2002-10-04 2007-06-14 Zf Sachs Ag Drive unit, in particular for a motor vehicle
US7122914B2 (en) * 2003-12-22 2006-10-17 Caterpillar Inc. System for starting an electric drive machine engine
US7024859B2 (en) * 2004-02-02 2006-04-11 Illinois Institute Of Technology Combustion engine acceleration support using an integrated starter/alternator
WO2005105507A1 (en) * 2004-04-28 2005-11-10 Aisin Aw Co., Ltd Drive device for hybrid vehicle
SE529460C2 (en) * 2004-07-09 2007-08-14 Saab Automobile Power transmitting system for a hybrid-powered motor vehicles
US7105937B2 (en) * 2004-07-14 2006-09-12 Hamilton Sundstrand Corporation Adjustable variable frequency starter/generator system
FR2881380B1 (en) * 2005-02-01 2007-04-20 Peugeot Citroen Automobiles Sa Device for coupling between the rotor of a reversible rotating electric machine and the primary shaft of the gearbox of a motor vehicle thermal motor
FR2890605B1 (en) * 2005-09-15 2008-12-26 Peugeot Citroen Automobiles Sa Hybrid traction chain and hybrid vehicle equipped with such a hybrid traction chain
US7281595B2 (en) * 2005-12-13 2007-10-16 International Truck Intellectual Property Company, Llc System for integrating body equipment with a vehicle hybrid powertrain
US7783805B2 (en) * 2006-11-29 2010-08-24 Cisco Technology, Inc. Interlocking input/outputs on a virtual logic unit number
CN101468597B (en) 2007-12-28 2011-09-07 重庆长安汽车股份有限公司 Parallel type vehicle oil electric mixed dynamic system
DE102008021685B4 (en) * 2008-04-30 2015-05-13 Hoerbiger Antriebstechnik Gmbh Coupling system of a hybrid powertrain
CN101282054B (en) * 2008-05-23 2010-06-02 隆鑫工业有限公司 Engine generator
US8425376B2 (en) * 2009-04-10 2013-04-23 GM Global Technology Operations LLC Multi-speed dual-clutch transmission for a hybrid vehicle
US8245801B2 (en) * 2009-11-05 2012-08-21 Bluways Usa, Inc. Expandable energy storage control system architecture
US20110100735A1 (en) * 2009-11-05 2011-05-05 Ise Corporation Propulsion Energy Storage Control System and Method of Control
US9108528B2 (en) * 2011-04-06 2015-08-18 Gm Global Technoogy Operations Llc Open modular electric powertrain and control architecture
US10343533B2 (en) 2011-04-08 2019-07-09 Mitsubishi Electric Corporation Power supply system with improved energy recovery from regenerative braking
JP5545778B2 (en) * 2012-08-08 2014-07-09 富士重工業株式会社 transmission
JP5439555B2 (en) * 2012-08-08 2014-03-12 富士重工業株式会社 Transmission
US8985253B2 (en) 2013-02-05 2015-03-24 Honda Motor Co., Ltd. Generators and vehicles having auxiliary power generation systems
US9174525B2 (en) 2013-02-25 2015-11-03 Fairfield Manufacturing Company, Inc. Hybrid electric vehicle
DE102016202879A1 (en) * 2016-02-24 2017-08-24 Bayerische Motoren Werke Aktiengesellschaft Drive system for a hybrid vehicle and method for operating such a drive system
US10018230B2 (en) 2016-09-13 2018-07-10 Borgwarner Inc. Permanently engaged starter with dry friction clutch
US10559989B2 (en) 2017-08-07 2020-02-11 Schaeffler Technologies AG & Co. KG Rotor carrier and locking diaphragm spring
KR20190035108A (en) * 2017-09-26 2019-04-03 현대자동차주식회사 Coil Muti Cooling Paths type Drive Motor and Echo Vehicle thereby

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2925675C2 (en) * 1979-06-26 1988-02-11 Volkswagen Ag
DE2943554C2 (en) 1979-10-27 1990-10-04 Volkswagen Ag
FR2604229B1 (en) * 1986-09-19 1990-11-02 Valeo A clutch device has automatic inertial control.
DE3737192C2 (en) * 1986-11-11 2000-03-23 Volkswagen Ag Hybrid drive for a vehicle
DE3889911T2 (en) 1987-02-18 1995-01-05 Hino Motors Ltd Electric brake and auxiliary acceleration device for vehicles.
DE3737229C2 (en) * 1987-11-03 1996-06-05 Fichtel & Sachs Ag Friction clutch unit
US5001412A (en) * 1988-09-02 1991-03-19 Chrysler Corporation Alternator starter
JPH0297300A (en) * 1988-09-30 1990-04-09 Aisin Seiki Co Ltd Portable type engine generator
DE4311697A1 (en) * 1993-04-08 1994-10-13 Bayerische Motoren Werke Ag Drive arrangement for motor vehicles, in particular with hybrid drive
WO1995002758A1 (en) * 1993-07-15 1995-01-26 Onan Corporation Auxiliary power system for hybrid electric vehicle
US5881559A (en) * 1995-07-28 1999-03-16 Isuzu Ceramics Research Institute Co., Ltd. Hybrid electric vehicle
JP3454036B2 (en) * 1995-11-13 2003-10-06 トヨタ自動車株式会社 Hybrid drive
JP3533958B2 (en) * 1997-12-25 2004-06-07 日産自動車株式会社 Hybrid vehicle control device
US6177734B1 (en) * 1998-02-27 2001-01-23 Isad Electronic Systems Gmbh & Co. Kg Starter/generator for an internal combustion engine, especially an engine of a motor vehicle
US6073713A (en) * 1998-03-25 2000-06-13 Ford Global Technologies, Inc. Crankshaft position sensing with combined starter alternator
FR2782354B1 (en) * 1998-07-28 2001-03-30 Valeo Equip Electr Moteur Friction clutch carrying the rotor of an electric machine, particularly for a motor vehicle
US6176808B1 (en) * 1999-07-15 2001-01-23 Ford Global Technologies, Inc. Hybrid vehicle powertrain and control therefor
US6196344B1 (en) * 1999-09-10 2001-03-06 Ford Global Technologies, Inc. Control system and method for a hybrid electric vehicle
US6233935B1 (en) * 1999-12-07 2001-05-22 Ford Global Technologies, Inc. Method and apparatus for starting an engine having a turbocharger
US6204577B1 (en) * 2000-01-05 2001-03-20 Jeffrey Eliot Chottiner Method and apparatus for space-saving installation of a starter-alternator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2448092A2 (en) 2010-10-29 2012-05-02 ZF Friedrichshafen AG Drive unit with an electric machine and a clutch
DE102010043117A1 (en) 2010-10-29 2012-05-03 Zf Friedrichshafen Ag Drive unit with an electric machine and a clutch

Also Published As

Publication number Publication date
US6364042B1 (en) 2002-04-02
EP1150007A2 (en) 2001-10-31
DE60118112D1 (en) 2006-05-11
DE60118112T2 (en) 2006-11-09
EP1150007A3 (en) 2004-12-15

Similar Documents

Publication Publication Date Title
US10589735B2 (en) Front end motor-generator system and hybrid electric vehicle operating method
KR20150008029A (en) Hybrid electric vehicle powertrain
CN102483020B (en) Method of converting vehicle into hybrid vehicle
US8376905B2 (en) Vehicle drive device
US10112603B2 (en) Front end motor-generator system and hybrid electric vehicle operating method
US6705416B1 (en) Hybrid propulsion system comprising shiftable clutches provided for a motor vehicle
EP0844937B1 (en) Drive system for a motor vehicle with a drive unit and electric machine, and method of operating the system
EP1625962B1 (en) Power Switchover Apparatus for a hybrid vehicle
US6202776B1 (en) Drive system, especially for a motor vehicle, and method of operating same
US10479180B2 (en) Front end motor-generator system and hybrid electric vehicle operating method
US6258001B1 (en) Vehicle drive train
JP3379439B2 (en) Start control device for internal combustion engine
US8475330B2 (en) Method and device for controlling a creep mode of a vehicle having a hybrid drive system
US6083138A (en) Hybrid drive control system for vehicle
CN1116183C (en) Hybrid propulsion system for motor vehicle
KR100680364B1 (en) Starter with electric oil pump for hybrid vehicle
EP1316721B1 (en) Automotive internal combustion engine control system
US10308240B2 (en) Front end motor-generator system and hybrid electric vehicle operating method
US3882950A (en) Vehicle power system for limited vehicle movement without use of fuel
US4499965A (en) Hybrid drive arrangement
JP5120644B2 (en) Hybrid drive device
US6199650B1 (en) Drive system, especially for a motor vehicle, and method of operating same
DE10329109B4 (en) Device for transmitting power for a vehicle
US8560156B2 (en) Power assisting system
US6852062B1 (en) Drive system for motor vehicles

Legal Events

Date Code Title Description
AX Request for extension of the european patent to

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states:

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent to

Extension state: AL LT LV MK RO SI

AK Designated contracting states:

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17P Request for examination filed

Effective date: 20050502

AKX Payment of designation fees

Designated state(s): DE GB SE

AK Designated contracting states:

Kind code of ref document: B1

Designated state(s): DE GB SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60118112

Country of ref document: DE

Date of ref document: 20060511

Kind code of ref document: P

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060622

26N No opposition filed

Effective date: 20061227

PGFP Postgrant: annual fees paid to national office

Ref country code: GB

Payment date: 20080317

Year of fee payment: 8

PGFP Postgrant: annual fees paid to national office

Ref country code: DE

Payment date: 20080430

Year of fee payment: 8

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090420

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091103

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090420